Finding the Fourth Proportional to 509,263.49, 702,472.20 and 302,391.65
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Solution
The fourth proportional to 509,263.49, 702,472.20 and 302,391.65 is: 417,115.56
Step by Step Solution
- Step 1: Write the proportion equation
509,263.49 : 702,472.20 = 302,391.65 : x - Step 2: Convert to fraction form
509,263.49/702,472.20 = 302,391.65/x - Step 3: Cross multiply
509,263.49x = 702,472.20 × 302,391.65 - Step 4: Simplify right side
509,263.49x = 212,421,724,124.77 - Step 5: Solve for x
x = 212,421,724,124.77/509,263.49 - Step 6: Final answer
x = 417,115.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.